Oil-filter.



PA'IEBTFEDv OCT. 6, 1903.

W. F. WARDEN'.

OIL lILIlR.4 n APPLIGATION FILED MAR. 25. 190s.

N0 MODEL.

AQML,

UNITED STATES Patented October 6, 1.903.

WILLIAll/LF. WARDEN, OF AKRON, OHIO.

OlL-FlLTER.

SPECIFICATION forming part of Leners Patent No. 740,957, dated october c, 1903.

Application filed March 25, 1903. SerialNd 149,558. (No model.)

To a/ZZ whom it may concern:

Be it known that l, WILLIAM F. WAEDEN, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented certain new and useful Improvements in Oil-Filters, of which the following is a specification.

This invention relates to improvements in oil-filters; and the Objectis to provide an improved construction of'ilter by means of which lubricatingoils that have become charged with foreign substances through use upon machinery may be quickly and thoroughly freed from such substances, washed, and delivered in a puritied condition for further use. H

With the above object in view the invention consists in the novel features of construction hereinafter fully described,particu larly pointed out in the claims, and clearly illustrated by the accompanying drawing, which illustrates a longitudinal sectional view of a filter embodying the invention.

Referring now more particularly to said drawing, 1 designates a cylindrical tank divided by a partition 2 into a lower compartment 3, adapted to contain water and the purified oil, and an upper compartment divided by a substantially'inverted conicalshaped wall 4 into a receiving-chamber 5 for the oil to be iltered, and awater-chamber 6, surrounding the sides of the oil-chamber. Arranged in the water-chamber is a heatingcoil 7 for the purpose of heating the water in order to render the oil extremely Huid and facilitate the filtering process. Water is in! troduced into chamber 6 through an inlet 8 and may be removed therefrom through a cock 9.

Removably positioned in chamber 5 isa vessel 11 of such size as to leave below it a space or compartment 10, the bottom wall12 of said vessel being perforated. of this vessel extend to and overlap the upper edge of chamber 5, so as to prevent oil from passing downward between the walls of said chamber and vessel. Formed in the lower portion of vessel 11 by a removable perforated plate liisv a filtering-chamber 14, adapted to contain waste or other suitable filtering material.

Projecting upwardly into chamber l0 and The side walls` extending downwardlyinto the lower compartment of the tank is a tube or pipe l5,

`the lower end of which terminates in close proximity to` the bottom wall of the tank and is provided with a perforated plate 16 to spread the oil and subject it to the cleaning action of the water in compartment 3. tube has its upper end closed by a removable cover 17 and is perforated near said upper end, while at its lower end it is provided with a perforated cone-shaped outlet 18. Said tube is adaptedfto contain a suitable filtering material-as, for instance, bone-black. Positioned in chamber 10 at the upper end of tube 15 and below the perforated wall 12 ot' the first filtering-chamber is a pan 19, into which the oil passes from chamber 14 and from which it overflows into a filtering-chamber 20 formed therebeneath, said pan being of such size as to permit the oil to thus overdow into said lower or second filteringchamber. Said chamber 20 contains a suitable iltering material, and depending from the under side ot the pan thereinto is a ringlike deIiecting-plate 21, which causes the oil to 4pass downward through the filtering material of said chamber before passing through the perforatious of tube 15. The upper end of the tube 15 opens through the bottom wall of said pan, and the removable cover for the open end of the tube forms a part of the bottom wall of the pan. f The tank is provided at its upper end with la removable cover 22 and at its lower end with au inclined bottom 23,'removed from the lower edge of the tank to provide a space forY a heating-coil 24 for heating the water in the lower compartment. Said tank is also provided with a gage 25, a cock 26 to draw off Vthe purified oil, and a cock 27, by means of which the water may be withdrawn from compartment 3.

The opera-tion of the invention is as follows: The tank is illed with water up to the point marked water-line and water introduced into the chamber 6. The waste oilthat is, the oil to be filtered-is placed in the receiving-chamber 5, froml which it passes through the perforated top wallof the first ltering-chamber and through the filtering material therein, where a portion of the impurities are removed. The oil then passes This ICO

through the perforated bottom wall of said chamber and into the pan 19, Where a portion of the sediment is removed. From this pan the oil overflows, passing downward through the filtering material of the second filteringchamber and upward through the same (being caused to take this path by the deiectingplate 21) and through the perforated upper end of tube 15 into said tube and downward through the filtering material therein. During this second and third ltering of the oil nearly all of the impurities are removed therefrom. The oil then passes through the perforated cone-shaped outlet of the tube, is spread upon the plate 16, Where it is subjected to the washing action of the water, and passes up through the water in the lower compartment of the tank and is separated at the water-line, being delivered at this point in a filtered and purified condition.

Having thus fully described my invention, what I claim as new,'and desire to secure by Letters Patent of the United States, is

1. An oil-filter comprising a tank, an oilreceiving chamber for the oil to be filtered in the upper end of said tank, a filtering-chamber arranged to receive the oil from said oilchamber, asecond filtering-chamberarranged beneath said first-mentioned filtering-chamber, a tube leading from the second filteringchamber to the lower portion of the tank, and a receptacle positioned between said filtering-chambers and arranged to receive oil from the irstchamber and permit the same to overilow into the second iltering-chamber.

2. An oil-filter comprising a tank, an oilreceiving chamber for the oil to be iilteredvin the upper end of the tank, a filtering-chamber arranged to receive the oil from said oilchamber, a second filtering-chamber arranged beneath the iirst-mentioned iltering-chamber, a receptacle positioned between said filtering-chambers and arranged to receive oil from the first and permit the same to overlow into the second filtering-chamber, and a tube containing filtering material communieating with the second filtering-chamber and extending downwardly to the lower portion of the tank.

3. An oil-filter comprising a tank, an oilreceiving chamber for the oil to be filtered in the upper end of said tank, a filtering-chamber arranged to receive the oil from said oilcham ber, a second filtering-chamber arranged,

beneath the first-mentioned liltering-chamber, a receptacle positioned between the l'iltering-chambers and arranged to receive the oil from the first and permit it to overflow into the second filtering-chamber, a tube com- -municating with the second filtering-chamber near the upper end of the latter and eX- tending downwardly to the lower portion of the tank, and a deflecting-plate arranged in said second filtering-chamber to cause the oil to pass downwardly therein before passing upward to the tube.

In testimony whereof I have signed my name to this specification in presence of two witnesses.

VILLIAM F. VARDEN.

Witnesses:

H. I. PARsoNs, F. B. BURCH. 

